This week on Unbottled, we’re paying tribute to the Colorado River – named America’s most endangered river in 2012. Each day, you’ll have an opportunity to learn about this important water source through a series from National Geographic. And you’ll also have a chance to help restore 1,000 gallons to the Colorado River by taking the free pledge. Find out more about Change the Course here and check out our fifth and final blog of the series below.

Back in late June 2012, the Yampa River – a beautiful Colorado River tributary that runs through the heart of Steamboat Springs, Colorado – was flowing at 5 percent of normal. Both the native whitefish population and the recreational trout fishery were threatened due to the river’s low levels of oxygen and its warmer temperatures. Besides the risks to fish, the low flows had caused tubing and kayaking businesses to shut down, hurting the local economy.

Watch the video.

More from this series: